Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843981 | Tooth bleaching compositions and methods of bleaching discolored tooth | Emi Higashiizumi, Ryuji Sotoaka, Fukusaburo Ishihara, Minoru Kakuda, Masumi Ogasawara +1 more | 2005-01-18 |
| 6783363 | Discolored teeth bleaching system | Hiromasa Eguchi, Kazutomo Takami, Toru Nonami | 2004-08-31 |
| 6231343 | Method for bleaching discolored tooth by titanium dioxide photocatalyst | Kouzo Ishibashi, Hiroshi Taoda, Toru Nonami | 2001-05-15 |